From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Fertser Date: Wed, 13 Oct 2010 03:05:44 +0400 Subject: Issues with 14e4:4315 on "lenovo ideapad s9" - works only after wl In-Reply-To: <20101012221229.GE1593@home.pavel.comp> References: <20101009115320.GR1593@home.pavel.comp> <20101009183637.GT1593@home.pavel.comp> <20101009213220.GU1593@home.pavel.comp> <20101010072158.GV1593@home.pavel.comp> <20101012221229.GE1593@home.pavel.comp> Message-ID: <20101012230543.GF1593@home.pavel.comp> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: b43-dev@lists.infradead.org On Wed, Oct 13, 2010 at 02:12:29AM +0400, Paul Fertser wrote: > On Sun, Oct 10, 2010 at 06:50:55PM +0200, G?bor Stefanik wrote: > > 2010/10/10 Paul Fertser : > > > Even simply loading wl (without bringing the interface up etc) helps. > > > Attached is a parsed mmiotrace of that (hail to nouveau). Alas simply > > > replaying it (even with a 5ms delay inbetween writes) doesn't improve > > > anything. > > > > That definitely won't help - if you just brainlessly replay an > > mmiotrace, the writes will end up on the wrong SSB cores. You also > > need to replay PCI config space writes. AFAIK there has been a patch > > earlier on the list to show PCI config space accesses in mmiotrace. > > Before i was using the bleeding edge compat-wireless and now i compiled > wireless-testing 4b8f8abb4f. With compat-wireless b43 reliably didn't work at > all after cold booting, producing Fatal DMA error immediately with no used > slots. With w-t (even unmodified!) b43 does work after cold boot :-O Once i've > seen it produce Fatal DMA error again while transferring a file over scp (can't > reproduce anymore, dmesg attached) In fact, i can reliably reproduce Fatal DMA error on b43 cold boot with w-t by ssh'ing zeroes to a host (connected via ethernet to AP) in about 3 minutes. And this doesn't seem to happen if i modprobe and rmmod wl beforehand (without even bringing the interface up). Any other tests i can do for you? :) -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercerpav at gmail.com